12427320 has 32 divisors (see below), whose sum is σ = 37282320. Its totient is φ = 3313920.

The previous prime is 12427319. The next prime is 12427321. The reversal of 12427320 is 2372421.

It is an interprime number because it is at equal distance from previous prime (12427319) and next prime (12427321).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51661 + ... + 51900.

Almost surely, 2^12427320 is an apocalyptic number.

12427320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12427320 is an abundant number, since it is smaller than the sum of its proper divisors (24855000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12427320 is a wasteful number, since it uses less digits than its factorization.

12427320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103575 (or 103571 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12427320 is about 3525.2404173333. The cubic root of 12427320 is about 231.6287661776.

Adding to 12427320 its reverse (2372421), we get a palindrome (14799741).

The spelling of 12427320 in words is "twelve million, four hundred twenty-seven thousand, three hundred twenty".